I'm wearing one of Barry M's glitter nail polishes on my nails here: Amethyst Glitter. It contains small round pieces of pink, violet, blue, black and silver glitter, it's just so pretty! I was surprised of its opacity when I applied it on top of my black nail polish (p2's 500 eternal). Shown on the photos below is one coat of black and one coat of the glitter. I don't know if it would be opaque enough on its own after some layers, but it would be worth a try. It looks amazing like this anyway, don't you think?
